With the help of another User on Github we found out what was causing the error! It was the sudo, that I mistakenly used to execute the script. Running the install as pi was the solution. Hope this will help someone with the same problem.

I can also verify this as I just setup a brand new rPi yesterday. Downloaded a fresh copy of jessie, booted up the rPi, did the setup for it, made sure all apps were up to date (with 'sudo apt-get update ; sudo apt-get upgrade' then installed MM as per the wiki’s instructions. Done.